1. Centre of Advanced Manufacturing and Material Processing (AMMP Centre)University of Malaya, Kuala Lumpur 50603, Malaysia
2. Department of Mechanical EngineeringFaculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
3. Restorative Dentistry DepartmentDentistry Faculty, University of Toronto, Toronto, ON M5G 1G6, Canada